Pith Number

pith:VBK6HZFN

pith:2026:VBK6HZFNON6BXBVNZVCE3UQEPC

not attested not anchored not stored refs pending

A Low-Complexity Joint Fractional Delay and Doppler Frequency Estimator for AFDM-Enabled Vehicular LEO-ICAN Systems

Guangfu Sun, Jing Lei, Ke Xiao, Muzi Yuan, Xiaomei Tang, Zhenyu Chen

arxiv:2602.04316 v2 · 2026-02-04 · eess.SP

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{VBK6HZFNON6BXBVNZVCE3UQEPC}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Receipt and verification

First computed	2026-05-21T01:05:15.748942Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a855e3e4ad737c1b86adcd444dd20478bdb9566821e768a57cc6d78ce02a5920

Aliases

arxiv: 2602.04316 · arxiv_version: 2602.04316v2 · doi: 10.48550/arxiv.2602.04316 · pith_short_12: VBK6HZFNON6B · pith_short_16: VBK6HZFNON6BXBVN · pith_short_8: VBK6HZFN

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/VBK6HZFNON6BXBVNZVCE3UQEPC \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: a855e3e4ad737c1b86adcd444dd20478bdb9566821e768a57cc6d78ce02a5920

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1e6a00846918bf795daf0b1914e974c9111da134770f23aea81813efad51681f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "eess.SP",
    "submitted_at": "2026-02-04T08:30:50Z",
    "title_canon_sha256": "8935773f67dd80240d7c0f90048e2467d97095de034ff1408cc40fc9ce6918a4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2602.04316",
    "kind": "arxiv",
    "version": 2
  }
}